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Issue: When using the submit submission button in jquery, the form will still be submitted when return is false.WORKAROUND: Use the button buttons instead of the Submit buttonbutton" value= "submit" check (); " >
Again, the plug-in problem is more, the latter to solve, please do not be vicious. I hope you will put forward good suggestions and good words.
I. Analyzing the basics of form validation
In our web development process, we will encounter a variety of validation. Summed up the basic can be divided into several categories:
(1). required fields [This is very basic]
() restores the previously validated form to its original state before verification /*validator.showerrors ({"FirstName": "I know that your FirstName is Pete, pete!" }); To display custom error messages*/ if(formstate==false){ return; }Else{ //Do someing ... } }) //using AJAX to authenticate, the default is to submit the current validated value to the remote address,
The most common use of JavaScript is validation of forms, and jquery, as a good JavaScript library, also provides an excellent form validation plugin----Validation. Validation is one of the oldest
Validationengine gives us a lot of work to do with the form validation for the front end. In most cases we use validationengine to validate forms in several ways:
1 Use a normal form submission. This situation validationengine validation does not commit the form.
2 submitt
The previous article introduced the basics of the introduction of jquery validate form validation, detailed in the jquery validate form validation Primer, today's article delves into jquery
jquery simple Form Validation effect:As long as there is a form of the place, basic will have form validation, the following is a combination of examples of the simplest form
triggered when the form is submitted
Example: JQuery Submit () methodWhen submitting a form, a warning box is displayed:
$ ("form"). Submit (function () {
alert ("submitted");
});
Definitions and usageThe Submit event occurs when the
Previously used jquery validator to do some projects, but recently picked up, discovery features upgraded, some of the previous use of the method is already in the error, and then rearrange a blog to summarize the latest jquery form validate use tutorial.
How to use JQuery Validate
We often ask for user
If you need to modify these hints, you can add any information prompts that you want to display in the JS code.We use the most common forms of registration verification as an example to illustrate:First, you have a form, and you define the ID of the form.
Then introduce the following four JS files:
Then customize a JS file, the contents of this JS file
Small series of Internet access to a lot of articles on the jquery.validate, the big department just introduced its API and usage, not a detailed introduction to the case, research for half a day or not. To this end, the small make up a jquery validate.js form verification Getting started instance, write is not particularly good, but should apply to beginners, share to everyone.
The following is the Vali
, you can set the error message to prompt.
It is hoped that this article is helpful to the PHP program design based on YII framework.
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This example describes the Angularjs form checksum usage. Share to everyone for your reference, specific as follows:
The verification of form data is of little significance for improving web security, because the server received the request does not necessarily come from our front-end page, it is possible to come from other sites, hackers can make a
This example describes the jquery form validation feature. Share to everyone for your reference. Specifically as follows:
This is the form validation effect that is implemented using jquery
introduce it into the page
How to use
1. Officers transferred Guevara rules are written to the control
Copy Code code as follows:
$ (). Ready (function () {
$ ("#signupForm"). Validate ();
});
The package must be introduced in the way class= ' {} ' is used: jquery.metadata.js
You can modify the hint by using the following methods:
Class= ' {required:true,minlength:5,messages:{required: ' Please enter the content '}} '
When using the Equalto keyword, the following text must be
name of the control that the error prompt and validation does not pass6) Validclass (default: ' Valid ')Type: StringDescription: Adds an incoming CSS class to a successful validation control7) errorelement (default value: lable)Type: StringDescription: Tag the wrong div or span or label with a tag8) errorplacement (default: After an invalid element),9) ErrorcontainerType: selector stringDescription: An err
The first step, of course, is the same as using other jquery plug-ins, the introduction of plug-in file Vanadium.js;
The second step is to add the corresponding validation hooks to your form based on the validation method you want to use for your form. For
Verify that the Red submit button is displayed
Bindblur:function () {//jquery multilevel authentication form
var n = $ (' #item_name ');
var p = $ (' #price ');
var r = $ (' #reserve ');
Show (Velidate ())//page load after the first validation
//Three need to verify the validation of the binding field
special characters)
Match a string of special characters to a group
Regular expression modifiers(written in the regular expression terminator/back,):
Character
Significance
G
Global match, not just one match
I
Match ignores character case
After using g, for exec can be repeated execution to get the results, for the method provided by the string, will return multiple results at once:Back to to
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